Verification Layer For AI Agents

Free for a quick check. Pro for real verification.

Ground Truth helps AI agents verify claims, check live data, compare competitors, inspect APIs, and validate assumptions before they act.

Free

Best for basic endpoint checks and limited verification needs.

Only check_endpoint
100 requests per calendar month
Tracked by Cloudflare client IP in production, or an anonymous client identifier in local/dev
No API key required

Try Free Endpoint Check

Pro

$9/month

For teams that want Ground Truth as an always-on verification layer for their agents.

Requires X-API-Key
Billing must be active
5,000 requests per calendar month by default
Usage tracked per API key and tool
Competitor comparison
Claim verification
Market checks
Structured reports
Priority response

What Pro unlocks today: all six verification tools over MCP or direct API. Free currently exposes only the endpoint checker with a 100-request monthly cap.

Questions

What is Ground Truth?: Ground Truth is a verification layer for AI agents. Instead of trusting a model to guess, you give it a way to check live pricing, validate endpoints, compare competitors, and confirm claims before it responds.
What is MCP?: Model Context Protocol is the standard that lets AI apps call external tools. Ground Truth plugs into Claude Desktop, Cursor, and other MCP clients so your agent can verify before it acts.
Do I need an API key for the free check?: No. check_endpoint works immediately with no signup, up to 100 requests per calendar month.
What happens if I cancel?: Your Pro API key loses paid access immediately. You can still use the free tier for check_endpoint.